Hermann Ruben was born in Neumark, Poland, 1870. Prior to WWII he lived in Berlin, Germany. During the war he was in Berlin, Germany. Deported with Transport I/44 from Berlin,Berlin (Berlin),City of Berlin,Germany to Theresienstadt,Ghetto,Czechoslovakia on 13/08/1942. Hermann was murdered in the Shoah. Place of death: Theresienstadt, Czechoslovakia, 15/02/1943.
Gedenkbuch Berlins der jüdischen Opfer des Nazionalsozialismus, Freie Universität Berlin, Zentralinstitut für sozialwissenschaftliche Forschung, Edition Hentrich, Berlin 1995 (Memorial Book of the Jewish victims of National Socialism in Berlin, Free University of Berlin)